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    <title>Claude AI - 智能对话助手</title>
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    <!-- Hero Section -->
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            <h1 class="text-5xl md:text-7xl font-bold mb-6 tracking-tight">
                Claude AI
            </h1>
            <p class="text-xl md:text-2xl mb-8 opacity-90 font-light">
                Anthropic 智能对话助手，为专业人士打造的 AI 伙伴
            </p>
            <div class="flex justify-center space-x-6 text-lg">
                <div class="flex items-center">
                    <i class="fas fa-file-alt mr-2"></i>
                    <span>10万字文档处理</span>
                </div>
                <div class="flex items-center">
                    <i class="fas fa-shield-alt mr-2"></i>
                    <span>安全可靠</span>
                </div>
                <div class="flex items-center">
                    <i class="fas fa-brain mr-2"></i>
                    <span>深度理解</span>
                </div>
            </div>
        </div>
    </section>

    <!-- Main Content -->
    <main class="max-w-6xl mx-auto px-6 py-12">
        <!-- Introduction -->
        <div class="bg-white rounded-2xl shadow-xl p-8 mb-12 card-hover">
            <p class="text-lg leading-relaxed text-gray-700">
                <span class="drop-cap">C</span>laude是Anthropic公司开发的AI对话助手，面向需要高质量、安全可靠AI服务的专业人士和普通用户，提供智能对话和任务协助。它不仅是一个简单的聊天机器人，更是您工作和学习中的得力助手。
            </p>
            <a href="https://claude.ai/onboarding?returnTo=%2F%3F" target="_blank" class="inline-flex items-center mt-4 text-purple-600 hover:text-purple-800 transition-colors">
                <i class="fas fa-external-link-alt mr-2"></i>
                立即体验 Claude AI
            </a>
        </div>

        <!-- Core Features -->
        <section class="mb-12">
            <h2 class="text-3xl font-bold mb-8 text-gray-800 flex items-center">
                <i class="fas fa-star text-purple-600 mr-3"></i>
                核心功能概述
            </h2>
            <div class="grid md:grid-cols-2 lg:grid-cols-3 gap-6">
                <div class="bg-white rounded-xl p-6 shadow-lg card-hover">
                    <div class="text-purple-600 text-3xl mb-4 feature-icon">
                        <i class="fas fa-file-text"></i>
                    </div>
                    <h3 class="text-xl font-semibold mb-2">长文本处理</h3>
                    <p class="text-gray-600">支持处理长达10万字的文档，适合深度分析和研究</p>
                </div>
                <div class="bg-white rounded-xl p-6 shadow-lg card-hover">
                    <div class="text-purple-600 text-3xl mb-4 feature-icon">
                        <i class="fas fa-language"></i>
                    </div>
                    <h3 class="text-xl font-semibold mb-2">多语言交互</h3>
                    <p class="text-gray-600">支持多种语言的自然对话，打破语言障碍</p>
                </div>
                <div class="bg-white rounded-xl p-6 shadow-lg card-hover">
                    <div class="text-purple-600 text-3xl mb-4 feature-icon">
                        <i class="fas fa-code"></i>
                    </div>
                    <h3 class="text-xl font-semibold mb-2">代码辅助</h3>
                    <p class="text-gray-600">提供编程建议和代码审查，提升开发效率</p>
                </div>
                <div class="bg-white rounded-xl p-6 shadow-lg card-hover">
                    <div class="text-purple-600 text-3xl mb-4 feature-icon">
                        <i class="fas fa-chart-line"></i>
                    </div>
                    <h3 class="text-xl font-semibold mb-2">文档分析</h3>
                    <p class="text-gray-600">快速提取和总结文档要点，节省阅读时间</p>
                </div>
                <div class="bg-white rounded-xl p-6 shadow-lg card-hover">
                    <div class="text-purple-600 text-3xl mb-4 feature-icon">
                        <i class="fas fa-pen-fancy"></i>
                    </div>
                    <h3 class="text-xl font-semibold mb-2">创意写作</h3>
                    <p class="text-gray-600">协助内容创作和编辑，激发创意灵感</p>
                </div>
            </div>
        </section>

        <!-- Usage Scenarios -->
        <section class="mb-12">
            <h2 class="text-3xl font-bold mb-8 text-gray-800 flex items-center">
                <i class="fas fa-lightbulb text-purple-600 mr-3"></i>
                使用场景
            </h2>
            <div class="bg-gradient-to-r from-purple-50 to-indigo-50 rounded-2xl p-8">
                <div class="grid md:grid-cols-3 gap-8">
                    <div class="text-center">
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                            <i class="fas fa-graduation-cap text-3xl text-purple-600"></i>
                        </div>
                        <h3 class="text-xl font-semibold mb-2">学术研究</h3>
                        <p class="text-gray-600">文献综述、数据分析、论文写作</p>
                    </div>
                    <div class="text-center">
                        <div class="bg-white rounded-full w-20 h-20 mx-auto mb-4 flex items-center justify-center shadow-lg">
                            <i class="fas fa-briefcase text-3xl text-purple-600"></i>
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                        <h3 class="text-xl font-semibold mb-2">商业分析</h3>
                        <p class="text-gray-600">市场报告、竞品分析、战略规划</p>
                    </div>
                    <div class="text-center">
                        <div class="bg-white rounded-full w-20 h-20 mx-auto mb-4 flex items-center justify-center shadow-lg">
                            <i class="fas fa-palette text-3xl text-purple-600"></i>
                        </div>
                        <h3 class="text-xl font-semibold mb-2">内容创作</h3>
                        <p class="text-gray-600">文章撰写、文案优化、多语言翻译</p>
                    </div>
                </div>
            </div>
        </section>

        <!-- Advantages -->
        <section class="mb-12">
            <h2 class="text-3xl font-bold mb-8 text-gray-800 flex items-center">
                <i class="fas fa-trophy text-purple-600 mr-3"></i>
                优势与特色
            </h2>
            <div class="space-y-4">
                <div class="bg-white rounded-xl p-6 shadow-md flex items-start">
                    <i class="fas fa-shield-alt text-purple-600 text-2xl mr-4 mt-1"></i>
                    <div>
                        <h3 class="text-lg font-semibold mb-1">注重安全性和伦理</h3>
                        <p class="text-gray-600">采用Constitutional AI技术，避免有害输出</p>
                    </div>
                </div>
                <div class="bg-white rounded-xl p-6 shadow-md flex items-start">
                    <i class="fas fa-brain text-purple-600 text-2xl mr-4 mt-1"></i>
                    <div>
                        <h3 class="text-lg font-semibold mb-1">上下文理解能力强</h3>
                        <p class="text-gray-600">能够保持长对话的连贯性</p>
                    </div>
                </div>
                <div class="bg-white rounded-xl p-6 shadow-md flex items-start">
                    <i class="fas fa-check-circle text-purple-600 text-2xl mr-4 mt-1"></i>
                    <div>
                        <h3 class="text-lg font-semibold mb-1">回答质量高</h3>
                        <p class="text-gray-600">提供详细、准确的解释和论证</p>
                    </div>
                </div>
                <div class="bg-white rounded-xl p-6 shadow-md flex items-start">
                    <i class="fas fa-upload text-purple-600 text-2xl mr-4 mt-1"></i>
                    <div>
                        <h3 class="text-lg font-semibold mb-1">支持文件上传</h3>
                        <p class="text-gray-600">可直接处理PDF、Word等格式文档</p>
                    </div>
                </div>
            </div>
        </section>

        <!-- Visualization -->
        <section class="mb-12">
            <h2 class="text-3xl font-bold mb-8 text-gray-800 flex items-center">
                <i class="fas fa-project-diagram text-purple-600 mr-3"></i>
                Claude AI 生态系统
            </h2>
            <div class="bg-white rounded-2xl shadow-xl p-8">
                <div class="mermaid">
                    graph TD
                        A[Claude AI] --> B[核心功能]
                        A --> C[应用场景]
                        A --> D[技术优势]
                        
                        B --> B1[长文本处理]
                        B --> B2[多语言支持]
                        B --> B3[代码辅助]
                        B --> B4[文档分析]
                        B --> B5[创意写作]
                        
                        C --> C1[学术研究]
                        C --> C2[商业分析]
                        C --> C3[内容创作]
                        
                        D --> D1[Constitutional AI]
                        D --> D2[上下文理解]
                        D --> D3[高质量输出]
                        D --> D4[文件处理]
                        
                        style A fill:#667eea,stroke:#fff,stroke-width:3px,color:#fff
                        style B fill:#f3e8ff,stroke:#667eea,stroke-width:2px
                        style C fill:#f3e8ff,stroke:#667eea,stroke-width:2px
                        style D fill:#f3e8ff,stroke:#667eea,stroke-width:2px
                </div>
            </div>
        </section>

        <!-- Pricing -->
        <section class="mb-12">
            <h2 class="text-3xl font-bold mb-8 text-gray-800 flex items-center">
                <i class="fas fa-dollar-sign text-purple-600 mr-3"></i>
                使用门槛与成本
            </h2>
            <div class="grid md:grid-cols-2 gap-6">
                <div class="bg-white rounded-xl p-8 shadow-lg border-2 border-gray-200">
                    <h3 class="text-2xl font-bold mb